All Products be at room temperature, the butter is soft but not liquid. With the mixer the butter mix with powdered sugar foam, add vanilla, a pinch of salt and 3 egg yolks, one after another , was added and the three whole eggs. Sift the flour with the baking powder, add parts to the shattered cream, stirring with a mixer on the lowest level. Wash handles mixer, dry, put in a bowl 3 egg whites with granulated sugar and beat until very thick cream, add parts to the oil part, stir very gently. Cocoa dissolve with a little water is thick bowl robbing wall egg white cream that is left and mix it with the chocolate until fluffy cocoa cream. Divide the cake batter in two and one part add cocoa, stirring gently. If the shape is elongated litter with kitchen paper smeared with grease and spills with a small ladle in the center of the shape of the white mixture, top brown and so on until the end of it. If round greased and flour, pour the white line, turn brown. Top sprinkle nuts optional. Bake in a preheated 180C oven for 45-50 minutes. * The oval shape is the size 35h11 cm.